S
M
T
W
T
F
S
26
64°
54°
27
67°
54°
28
63°
52°
29
65°
55°
30
67°
55°
31
67°
56°
1
66°
55°
2
67°
55°
3
65°
54°
4
65°
55°
5
66°
54°
6
67°
55°
7
63°
54°
8
64°
55°
9
66°
56°
10
67°
56°
11
67°
55°
12
66°
56°
13
66°
56°
14
67°
55°
15
64°
54°
16
64°
52°
17
63°
54°
18
65°
54°
19
66°
53°
20
64°
53°
21
65°
49°
22
63°
53°
23
62°
53°
24
65°
54°
25
65°
53°
26
64°
53°
27
65°
52°
28
64°
51°
29
63°
52°
30
62°
52°
31
62°
53°
1
64°
53°
2
64°
52°
3
63°
53°
4
64°
53°
5
63°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Kelso
Kelso's August 2026 forecast shows daily high temperatures ranging from 62° to 67°, with overnight lows between 49° and 56°. The average high for August is 65° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Kelso. See also: September | October | November.
